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<head>
    <meta charset="UTF-8">
    <title>HTML5 new property</title>
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<body>
    &lt;elementname attributttename=value&gt;
    <br> &lt;element name="value value"&gt;&lt;/element&gt;
    <br> &lt;elementname attribute&gt;
    <br>
    <label for="checkbox">Selected</label>
    <input id="checkbox" type="checkbox" checked>
    <br>
    <p>
        HTML5 新事件
        <br> onabort
        <br> onbeforeonload、 onbeforonunload、onunload
        <br> oncontextmenu
        <br> ondrag、ondragend、ondragenter、ondragstart、ondrop
        <br> onerror、onmessage
        <br> onscroll
        <br> onresize
    </p>
    <p>
        HTML5 新属性
        <br> contenteditable
        <br> contextmenu
        <br> draggable
        <br> dropzone
        <br> hidden
        <br> spellcheck
    </p>
</body>
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